package com.encyclopedia.advice;

import com.alibaba.fastjson2.JSON;
import com.encyclopedia.result.JsonRequest;
import org.springframework.core.MethodParameter;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

@ControllerAdvice(basePackages = "com.encyclopedia.controller")
public class MyResponseBodyAdvice implements ResponseBodyAdvice<Object> {
    @Override
    public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
        System.out.println("进入aop切面了");
        return returnType.getParameterType() != JsonRequest.class;
    }

    @Override
    public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class<? extends HttpMessageConverter<?>> selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
        System.out.println("进入aop切面了" + body);
        JsonRequest<Object> success = JsonRequest.success(body);
        if (returnType.getParameterType() != String.class) return success;
        HttpHeaders headers = response.getHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON);
        return JSON.toJSONString(success);
    }
}
